diff --git a/.github/workflows/buildwheel.yml b/.github/workflows/buildwheel.yml
index 6e8b3b87..02ed7fd4 100644
--- a/.github/workflows/buildwheel.yml
+++ b/.github/workflows/buildwheel.yml
@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
 
@@ -52,7 +52,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
 
@@ -86,7 +86,7 @@ jobs:
         python-version: ['3.11', '3.12', '3.13', '3.13t', '3.14', '3.14t', 'pypy3.11']
 
     steps:
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
@@ -116,7 +116,7 @@ jobs:
         os: [ubuntu-24.04]
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: sudo apt-get update
@@ -129,7 +129,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: bin/install_latest_flint_ubuntu.sh
@@ -144,7 +144,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: sudo apt-get update
@@ -171,7 +171,7 @@ jobs:
         flint-tag: ['v3.0.1', 'v3.1.3-p1', 'v3.2.2', 'v3.3.1']
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: bin/install_flint_ubuntu.sh ${{ matrix.flint-tag }}
@@ -184,7 +184,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: bin/install_flint_ubuntu.sh main
@@ -198,7 +198,7 @@ jobs:
     runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: bin/install_flint_ubuntu.sh main
@@ -212,7 +212,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: sudo apt-get update
@@ -226,7 +226,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.12' # does not work with 3.13
       - run: sudo apt-get update
@@ -244,7 +244,7 @@ jobs:
         sympy-version: ['1.13.1', '1.14.0']
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: sudo apt-get update
@@ -260,7 +260,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.13'
       - run: sudo apt-get update
diff --git a/.github/workflows/ci-emscripten.yml b/.github/workflows/ci-emscripten.yml
index 2661b2e6..8f14a29a 100644
--- a/.github/workflows/ci-emscripten.yml
+++ b/.github/workflows/ci-emscripten.yml
@@ -23,7 +23,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
+        uses: actions/setup-python@2e3e4b15a884dc73a63f962bff250a855150a234 # v5.4.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index d6b8da97..dab11c29 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,7 +12,7 @@ jobs:
     - uses: actions/checkout@v5
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}